There are four muffin on each plate there are zero plates of lemon muffins how many lemon muffins are there

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Prove that 16^4-2^13-4^5 is divisible by 11.

Y=21.95x+10 y=22.45x solve by substitution